1 files changed, 0 insertions, 336 deletions
diff --git a/kernel/sched_stats.h b/kernel/sched_stats.h
deleted file mode 100644
index 48ddf431db0..00000000000
--- a/kernel/sched_stats.h
+++ /dev/null
@@ -1,336 +0,0 @@
-
-#ifdef CONFIG_SCHEDSTATS
-/*
- * bump this up when changing the output format or the meaning of an existing
- * format, so that tools can adapt (or abort)
- */
-#define SCHEDSTAT_VERSION 15
-
-static int show_schedstat(struct seq_file *seq, void *v)
-{
-	int cpu;
-	int mask_len = DIV_ROUND_UP(NR_CPUS, 32) * 9;
-	char *mask_str = kmalloc(mask_len, GFP_KERNEL);
-
-	if (mask_str == NULL)
-		return -ENOMEM;
-
-	seq_printf(seq, "version %d\n", SCHEDSTAT_VERSION);
-	seq_printf(seq, "timestamp %lu\n", jiffies);
-	for_each_online_cpu(cpu) {
-		struct rq *rq = cpu_rq(cpu);
-#ifdef CONFIG_SMP
-		struct sched_domain *sd;
-		int dcount = 0;
-#endif
-
-		/* runqueue-specific stats */
-		seq_printf(seq,
-		    "cpu%d %u %u %u %u %u %u %llu %llu %lu",
-		    cpu, rq->yld_count,
-		    rq->sched_switch, rq->sched_count, rq->sched_goidle,
-		    rq->ttwu_count, rq->ttwu_local,
-		    rq->rq_cpu_time,
-		    rq->rq_sched_info.run_delay, rq->rq_sched_info.pcount);
-
-		seq_printf(seq, "\n");
-
-#ifdef CONFIG_SMP
-		/* domain-specific stats */
-		preempt_disable();
-		for_each_domain(cpu, sd) {
-			enum cpu_idle_type itype;
-
-			cpumask_scnprintf(mask_str, mask_len,
-					  sched_domain_span(sd));
-			seq_printf(seq, "domain%d %s", dcount++, mask_str);
-			for (itype = CPU_IDLE; itype < CPU_MAX_IDLE_TYPES;
-					itype++) {
-				seq_printf(seq, " %u %u %u %u %u %u %u %u",
-				    sd->lb_count[itype],
-				    sd->lb_balanced[itype],
-				    sd->lb_failed[itype],
-				    sd->lb_imbalance[itype],
-				    sd->lb_gained[itype],
-				    sd->lb_hot_gained[itype],
-				    sd->lb_nobusyq[itype],
-				    sd->lb_nobusyg[itype]);
-			}
-			seq_printf(seq,
-				   " %u %u %u %u %u %u %u %u %u %u %u %u\n",
-			    sd->alb_count, sd->alb_failed, sd->alb_pushed,
-			    sd->sbe_count, sd->sbe_balanced, sd->sbe_pushed,
-			    sd->sbf_count, sd->sbf_balanced, sd->sbf_pushed,
-			    sd->ttwu_wake_remote, sd->ttwu_move_affine,
-			    sd->ttwu_move_balance);
-		}
-		preempt_enable();
-#endif
-	}
-	kfree(mask_str);
-	return 0;
-}
-
-static int schedstat_open(struct inode *inode, struct file *file)
-{
-	unsigned int size = PAGE_SIZE * (1 + num_online_cpus() / 32);
-	char *buf = kmalloc(size, GFP_KERNEL);
-	struct seq_file *m;
-	int res;
-
-	if (!buf)
-		return -ENOMEM;
-	res = single_open(file, show_schedstat, NULL);
-	if (!res) {
-		m = file->private_data;
-		m->buf = buf;
-		m->size = size;
-	} else
-		kfree(buf);
-	return res;
-}
-
-static const struct file_operations proc_schedstat_operations = {
-	.open    = schedstat_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = single_release,
-};
-
-static int __init proc_schedstat_init(void)
-{
-	proc_create("schedstat", 0, NULL, &proc_schedstat_operations);
-	return 0;
-}
-module_init(proc_schedstat_init);
-
-/*
- * Expects runqueue lock to be held for atomicity of update
- */
-static inline void
-rq_sched_info_arrive(struct rq *rq, unsigned long long delta)
-{
-	if (rq) {
-		rq->rq_sched_info.run_delay += delta;
-		rq->rq_sched_info.pcount++;
-	}
-}
-
-/*
- * Expects runqueue lock to be held for atomicity of update
- */
-static inline void
-rq_sched_info_depart(struct rq *rq, unsigned long long delta)
-{
-	if (rq)
-		rq->rq_cpu_time += delta;
-}
-
-static inline void
-rq_sched_info_dequeued(struct rq *rq, unsigned long long delta)
-{
-	if (rq)
-		rq->rq_sched_info.run_delay += delta;
-}
-# define schedstat_inc(rq, field)	do { (rq)->field++; } while (0)
-# define schedstat_add(rq, field, amt)	do { (rq)->field += (amt); } while (0)
-# define schedstat_set(var, val)	do { var = (val); } while (0)
-#else /* !CONFIG_SCHEDSTATS */
-static inline void
-rq_sched_info_arrive(struct rq *rq, unsigned long long delta)
-{}
-static inline void
-rq_sched_info_dequeued(struct rq *rq, unsigned long long delta)
-{}
-static inline void
-rq_sched_info_depart(struct rq *rq, unsigned long long delta)
-{}
-# define schedstat_inc(rq, field)	do { } while (0)
-# define schedstat_add(rq, field, amt)	do { } while (0)
-# define schedstat_set(var, val)	do { } while (0)
-#endif
-
-#if defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT)
-static inline void sched_info_reset_dequeued(struct task_struct *t)
-{
-	t->sched_info.last_queued = 0;
-}
-
-/*
- * We are interested in knowing how long it was from the *first* time a
- * task was queued to the time that it finally hit a cpu, we call this routine
- * from dequeue_task() to account for possible rq->clock skew across cpus. The
- * delta taken on each cpu would annul the skew.
- */
-static inline void sched_info_dequeued(struct task_struct *t)
-{
-	unsigned long long now = task_rq(t)->clock, delta = 0;
-
-	if (unlikely(sched_info_on()))
-		if (t->sched_info.last_queued)
-			delta = now - t->sched_info.last_queued;
-	sched_info_reset_dequeued(t);
-	t->sched_info.run_delay += delta;
-
-	rq_sched_info_dequeued(task_rq(t), delta);
-}
-
-/*
- * Called when a task finally hits the cpu.  We can now calculate how
- * long it was waiting to run.  We also note when it began so that we
- * can keep stats on how long its timeslice is.
- */
-static void sched_info_arrive(struct task_struct *t)
-{
-	unsigned long long now = task_rq(t)->clock, delta = 0;
-
-	if (t->sched_info.last_queued)
-		delta = now - t->sched_info.last_queued;
-	sched_info_reset_dequeued(t);
-	t->sched_info.run_delay += delta;
-	t->sched_info.last_arrival = now;
-	t->sched_info.pcount++;
-
-	rq_sched_info_arrive(task_rq(t), delta);
-}
-
-/*
- * This function is only called from enqueue_task(), but also only updates
- * the timestamp if it is already not set.  It's assumed that
- * sched_info_dequeued() will clear that stamp when appropriate.
- */
-static inline void sched_info_queued(struct task_struct *t)
-{
-	if (unlikely(sched_info_on()))
-		if (!t->sched_info.last_queued)
-			t->sched_info.last_queued = task_rq(t)->clock;
-}
-
-/*
- * Called when a process ceases being the active-running process, either
- * voluntarily or involuntarily.  Now we can calculate how long we ran.
- * Also, if the process is still in the TASK_RUNNING state, call
- * sched_info_queued() to mark that it has now again started waiting on
- * the runqueue.
- */
-static inline void sched_info_depart(struct task_struct *t)
-{
-	unsigned long long delta = task_rq(t)->clock -
-					t->sched_info.last_arrival;
-
-	rq_sched_info_depart(task_rq(t), delta);
-
-	if (t->state == TASK_RUNNING)
-		sched_info_queued(t);
-}
-
-/*
- * Called when tasks are switched involuntarily due, typically, to expiring
- * their time slice.  (This may also be called when switching to or from
- * the idle task.)  We are only called when prev != next.
- */
-static inline void
-__sched_info_switch(struct task_struct *prev, struct task_struct *next)
-{
-	struct rq *rq = task_rq(prev);
-
-	/*
-	 * prev now departs the cpu.  It's not interesting to record
-	 * stats about how efficient we were at scheduling the idle
-	 * process, however.
-	 */
-	if (prev != rq->idle)
-		sched_info_depart(prev);
-
-	if (next != rq->idle)
-		sched_info_arrive(next);
-}
-static inline void
-sched_info_switch(struct task_struct *prev, struct task_struct *next)
-{
-	if (unlikely(sched_info_on()))
-		__sched_info_switch(prev, next);
-}
-#else
-#define sched_info_queued(t)			do { } while (0)
-#define sched_info_reset_dequeued(t)	do { } while (0)
-#define sched_info_dequeued(t)			do { } while (0)
-#define sched_info_switch(t, next)		do { } while (0)
-#endif /* CONFIG_SCHEDSTATS || CONFIG_TASK_DELAY_ACCT */
-
-/*
- * The following are functions that support scheduler-internal time accounting.
- * These functions are generally called at the timer tick.  None of this depends
- * on CONFIG_SCHEDSTATS.
- */
-
-/**
- * account_group_user_time - Maintain utime for a thread group.
- *
- * @tsk:	Pointer to task structure.
- * @cputime:	Time value by which to increment the utime field of the
- *		thread_group_cputime structure.
- *
- * If thread group time is being maintained, get the structure for the
- * running CPU and update the utime field there.
- */
-static inline void account_group_user_time(struct task_struct *tsk,
-					   cputime_t cputime)
-{
-	struct thread_group_cputimer *cputimer = &tsk->signal->cputimer;
-
-	if (!cputimer->running)
-		return;
-
-	spin_lock(&cputimer->lock);
-	cputimer->cputime.utime =
-		cputime_add(cputimer->cputime.utime, cputime);
-	spin_unlock(&cputimer->lock);
-}
-
-/**
- * account_group_system_time - Maintain stime for a thread group.
- *
- * @tsk:	Pointer to task structure.
- * @cputime:	Time value by which to increment the stime field of the
- *		thread_group_cputime structure.
- *
- * If thread group time is being maintained, get the structure for the
- * running CPU and update the stime field there.
- */
-static inline void account_group_system_time(struct task_struct *tsk,
-					     cputime_t cputime)
-{
-	struct thread_group_cputimer *cputimer = &tsk->signal->cputimer;
-
-	if (!cputimer->running)
-		return;
-
-	spin_lock(&cputimer->lock);
-	cputimer->cputime.stime =
-		cputime_add(cputimer->cputime.stime, cputime);
-	spin_unlock(&cputimer->lock);
-}
-
-/**
- * account_group_exec_runtime - Maintain exec runtime for a thread group.
- *
- * @tsk:	Pointer to task structure.
- * @ns:		Time value by which to increment the sum_exec_runtime field
- *		of the thread_group_cputime structure.
- *
- * If thread group time is being maintained, get the structure for the
- * running CPU and update the sum_exec_runtime field there.
- */
-static inline void account_group_exec_runtime(struct task_struct *tsk,
-					      unsigned long long ns)
-{
-	struct thread_group_cputimer *cputimer = &tsk->signal->cputimer;
-
-	if (!cputimer->running)
-		return;
-
-	spin_lock(&cputimer->lock);
-	cputimer->cputime.sum_exec_runtime += ns;
-	spin_unlock(&cputimer->lock);
-}